General Specification; Video Interface - ViewSonic VX2245wm-1 Service Manual

4-1 GENERAL specification

Test Resolution & Frequency
Test Image Size
Contrast and Brightness Controls

4-2 VIDEO INTERFACE

Analog Input Connector
Digital Input Connector
Default Input Connector
Video Cable Strain Relief
Video Cable Connector DB-15 Pin out
Video Signals
Video Impedance
Maximum PC Video Signal
Maximum Mac Video Signal
Sync Signals
DDC 1/2B
Sync Compatibility
Video Compatibility
Resolution Compatibility
Exclusions
POWER SUPPLY (LCD Head)
Internal Power Supply
Input Voltage Range
Input Frequency Range
Short Circuit Protection
Over Current Protection
Leakage Current
Efficiency (at 115VAC Full Load)
Fuse
Power Output
Ripple and Noise
Max Input AC Current
Inrush Current (Cold Start)
Power Supply Cold Start
Power Supply Transient Immunity
Power Supply Line Surge Immunity
Power Supply Missing Cycle Immunity
Power Supply Acoustics
ViewSonic Corporation
1680x1050 @ 60Hz
Full Size
Factory Default:
Contrast = 70%, Brightness = 100%
DB-15 (Analog), refer the appendix A
DVI-D (Digital), refer the appendix B
Defaults to the first detected input
Equal to twice the weight of the monitor for five minutes
Compliant DDC 1/2B
1. Video RGB (Analog)
Separate, Composite, and Sync on Green
2. TMDS (Digital)
75 Ohms (Analog), 100 Ohms (Digital)
950 mV with no damage to monitor
1250 mV with no damage to monitor
TTL
Compliant with Revision 1.3
Separate Sync, Composite Sync, SOG
Shall be compatible with all PC type computers, Macintosh
computers, and after market video cards
640 x 350*, 640 x 480, 720 x 400* (640 x 400*), 800 x 600, 832 x
624, 1024 x 768, 1152 x 864, 1152 x 870, 1280 x 720, 1280 x
960, 1280 x 1024 , 1400 x 1050 , 1440 x 900 , 1600 x 1200, 1680
x 1050
* The image vertical size might not be full screen.
But the image vertical position should be at the center.
Not compatible with interlaced video
27-D009542
90 to 264 VAC
47 to 63 Hertz
Output can be shorted without damage
5.0 A typical at 12.0 VDC
3.5mA (Max) at 254VAC / 60Hz
Typical: 80%
Minimum: 75%
Internal and not user replaceable
50 Watts (typ)
Ripple: <3%
Noise: <1%
1.5 Arms @ 90VAC, 0.75 Arms @180VAC
50 A (max) @ 115VAC
90 A (max) @ 230VAC
Shall start and function properly when under full load, with all
combinations of input voltage, input frequency, and operating
temperature.
Shall be able to withstand an ANSI/IEEE C62.41-1980 6000V 200
ampere ring wave transient test with no damage.
Shall be able to withstand 1.5 times nominal line voltage for one
cycle with no damage.
Shall be able to function properly, without reset or visible screen
artifacts, when ½ cycle of AC power is randomly missing at
nominal input.
The power supply shall not produce audible noise that would be
detectable by the user.
Confidential - Do Not Copy
7
Audible shall defined to be in
VX2245wm-1